Mixing-machine.



G. P. HUTGHINGSSL C. A. WOODY.

MIXING MACHINE.

APPLICATION FILED APR. 1, 1912.

1,092,77 l Patented Apr. 7, 1914.

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G. P. HUTCHINGS 6: C. A. WOODY.

MIXING MACHINE.

APPLICATION PILBD APR. 1I 1912.

1,09%??1 f Patented Apr. 7, 1914.

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G. F. HUTGHINGS 6L C. A. WOODY.

MIXING MACHINE.

APPLIGATION FILED APR. 1, 19I2,

Patented Apr. 7, 1914.

3 SHEETS-SHEET 3.

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GEORGE F. HUTCHINGS, OF KANSAS CITY, MISSOURI, AND CORYDON A. WOODY, OFDENVERpCOLORADO, ASSIGNORS TO JOSEPH M. JONES, TRUSTEE.

MIXING-MACHINE.

To all whom t may concern.'

Be it known that we, GEORGE F. HUTCH- iNGs and ConYDoN A. VVooDr,citizens of the United States, residing at Kansas City and Denver, inthe counties of Jackson and Denver and States, of Missouri and Colorado,respectively, `have invented certain new and useful lmprovements inMixing- Machines, of which the following is a specification.

Our invention relates to improvements in mixing machines, and our objectis to provide a novel machine of this character, especially adapted tomix materials to form a superior wear and water resisting prod uct forhighways, railroad beds, reservoirs, or wherever the use of a product ofthis character is desired.

The product may be cheaply produced from macadam, gravel, earth, orother material, commonly found along highways, reduced to smallparticles and intermixed with a suitable binder, such for instance asasphalt, tar, oil, etc., until a dense wear-resisting and water-proofmass is obtained.

For the sake of brevity, the term material will hereinafter be employedexcept in the claims to designate earth, macadam, gravel, or othermateria-l commonly found along a highway, and the term binder will beemployed to designate asphalt, coal-tar, oil, etc. The binder maynormally be in liquid state or reduced to such state by heat at the timeof mixing it with the material even though it congeal under normaltemperature.

The machine is preferably portable so that it may readily be moved fromtime to time over a highway, the wearing surface or upper stratum ofwhich is being formed from the product delivered from the machine;

The machine embodies means which rechine.Y Fig. 2 is a longitudinalsection on line HMH of Fig. 1. Fig. 3 is an irregular cross section online III-III of Fig. l.

SpecificationV of Letters Patent.

Application filed April l, 1912.

Patented Apr. r7, 1914. sei-iai No. 687,694.

Fig. 4t is a cross section on line IV-IV of Fig. 1. Fig. 5 is acrosssection on line V-V of Fig. 1. Fig. G is a section on line VI-VI ofFig. 5.

1 designates a wheeled-truck provided at its rear portion with a. saddle2 carrying a stationary shell 3, which may be of truncated conical, orother preferred form. The enlarged rear end of shell 3 overhangs therear end of the truck l, so that it will be free to discharge theproduct in the rear of said truck.

t designates a jacket surrounding shell 3 from which'it is slightlyspaced to leave an annular heating-chamber 5 to prevent the binder fromcongealing before it is thoroughly mixed with the material. Chamber 5 isheated from a burner 6 and is divided by a deflector 7, which throws theheat uniformly around the. chamber before escaping through the flue 8 atthe upper rear end of the chamber 5, said deflector having an opening 7afor the passage of heat from burner 6 to flue 8. The forward end ofshell 3 is closed by a cup-shaped rotary disk 9, xedly-mounted upon ashaft 10, journaled in bearings 11 at the upper end of a standard 12,mounted upon the platform of the truck. Shaft 10 is driven by alixedly-mounted pulley 13, which may be driven by a gas-engine or othersuitable motor, not shown, mounted upon truck 1. Disk 9 has a circularrow of sockets 14 in which are mounted paddles 15 which lie against theinner surface of .shell Band extend to the rear end thereof, as shown onFig. 2, said paddles being removablysecured in the sockets by setscrews16, so that they can be readily replaced when worn or broken.

17 designates a hopper to receive the material used in producing theproduct. Said hopper is mounted adjacent shell 3 and communicates at itslower end with an endless conveyer 1S, which conducts the material Vto asmall elongated feed opening 19, through which the material isintroduced into shell 3. Feed-opening 19 extends inward from jacket l toshell 3 and is preferably on a level with the horizontal axis of saidshell, and the bottom of said opening inclines downward at its forwardportion 20, so that material will be discharged into the interior ofshell 3 in substantially the same direction traveled by the paddles 15.

The quantity of material fed from hopper 17 to opening 19 is regulatedby a verticallyadjustable gate 21, mounted upon one side of the hopper.

Arranged immediately beneath feed-opening 19 is a feed-opening 22, forthe delivery of the binder. Feed-opening 22 is in the form of anelongated slot, preferably, of the same length as the feed-opening 19,see Fig. 2, so that the sheet of liquid binder delivered by saidfeed-opening 22 will come into contact with substantially every particleof material carried past said feed-opening by the paddles 15.Feed-opening 22 receives its supply of binder from a hopper 23, througha duct 24, through which the binder is forced by a pair of reciprocatoryplungers 25 actuated by a crank-shaft 26,

journaled in bearings 27 secured to one side Aof hopper 23. Plungers 25have depending stems 28 provided at their lower ends with disks 29, toregulate the passage of the binder through the ports 30, which establishcommunication between the lower end of -fho-pper 23 and the top of duct24.

If the binder be introduced into the hopper 23 in solid state, it isreduced to a liquid before leaving said hopper by heat from a `hot-airchamber 31, which extends beneath said hopper 23 and the duct 24 toretain the binder in liquid state, so that it may become intimatelymixed with the material. Hotair chamber 31 receives it-s heat from a.burner 32, and said chamber has a flue 33 at Vits upper end for theescape of the products of combustion. After the hopper 23 has beenlilled with binder, said hopper is closed by a lid 34 to retain the heattherein.

As the best results are obtained by mixing the material and binder incertain proportions, I gear the conveyer 18 and the plungers 25 togetherthrough the intermediacy of a sprocket-wheel 35 fixed to one end ofshaft 36 of conveyer 18, a sprocket-wheel 37 fixed to one end of thecrankshaft 26 and an endless sprocket-chain 38 running around saidsprocket-wheels. Either of the shafts 26 or 3G may be driven by themotoren the truck 1. The material is prevented from being too widelyscattered when delivered from shell 3, by an adjustable shield 39,partly closing the rear end of said shell.

The operation briefly stated is as follows: Burners 6 and' 32 arelighted to heat the chambers 5 and 31, respectively, and hoppers 17 and23 are supplied with material and binder. The motor is then started todrive paddles 15, conveyer 18, and the plungers 25. As the material andthe binder are delivered through their respective feedopenings 19 and 22into shell 3, the material down gg k1,092,771

is broken up into small particles and intimately intermixed withthebinlder by the swiftly rotating paddles 15, which carry it aroundwithin shell 3 until the mixing process is completed when the product isfinally discharged from said shell. Should it be found that too much ortoo little material is being carried to shell 3, the proper pro-portionis obtained by'adjusting gate 21 up or The hoppers are replenished fromtime to time in order that the apparatus may lbe kept in continuousoperation. It is im .portant to keep the material and the binderseparate until they enter the shell, as other- ,wise the binder wouldcongeal and result in becoming mixed with the material in im-V p lproperproportions. The binder would also Y gum up the conveyer 18and interferewith fits properfoperation.

While we have shown and described the preferred form of our mixingmachine, we do not limit ourselves to the exactV arrange- `jment andconstruction of parts disclosedby the drawings, but reserve the right tomake fsuch changes as properly fall within theA spirit and scope of theappended claims.

Having thus described our invention what we claim and desire to secureby Letters Patent, is:

1.IA machine of the character described,

`,consisting of a support, a stationary shell :mounted upon saidsupport, said shell being Qopen at both ends and having two feedopenings, each for a different material, a rotary disk closing one endof said shell, anda 'plurality of paddles carried by said disk andcoacting with the shell to mix the mate- 4rial and discharge theresultant product from the shell.

2. A machine of the character described, ,consisting of a support, atruncatedconieal shell mountedon said support and having its enlargedopen end overhanging the rear end of said support, said shell having twofeed openings, each for a different mate-V rial, a cup-shaped diskclosingone end of said shell, paddles secured to said disk andprojecting into said shell and extending lengthwise thereof, a drivenshaft upon which the cup-shaped disk is mounted, a conveyer to conductmaterial to one of said feed-openings, and means to conduct 'material tothe other feed-opening. Y In testimony whereof we aflix oursignatures,in the presence of two witnesses.

GEORGE F. HUTCHINGS. CORYDON A. VOGDY.

lVitnesses:

F. G. FISCHER, E. C. LILLIAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,v

Washington, D. C.

